agree , but the B3 does not have all those improvements so the x pro is better ?

it depends who is the buyer. for a purist hammond sound like me , the quality of the sound of the organ is the main reason to by the x pro or crumar mojo or viscount legand solo\live , therfore i think that crumar mojo or viscount although they are much oldrer then the sk pro (a new one ) they are much better as a B3 clones